Webster's Revised Unabridged Dictionary · 1913

Banker

Banker (bank"ẽr) , noun

[See the nouns Bank and the verbs derived from them.]

1.
One who conducts the business of banking; one who, individually, or as a member of a company, keeps an establishment for the deposit or loan of money, or for traffic in money, bills of exchange, etc.
2.
A money changer. [Obsolete]
3.
The dealer, or one who keeps the bank in a gambling house.
4.
A vessel employed in the cod fishery on the banks of Newfoundland. — Crabb
5.
A ditcher; a drain digger. [Provincial English]
6.
The stone bench on which masons cut or square their work. — Weale